Textile spool



R. ATWOOD TEXTILE SPOOL June 12, 1945.

Filed Sept. 16, 1941 Piensa Jim '12, luns UNITED s-'rlxrlazs PA'nzNT4OFFICE Rawson Atwood. New York,V N. Y., aldgnor to Decorated Metal Manu!aetnrlng A Brooklyn, N. Y., a corporation of New York ApplicationSeptember 16, 1941, Serial No. 411,002

'z emma (ci. 24a-12o) 'I'his invention relates to improvements intextile spools.

It is an object of the invention to provide a textile spool or winding.tube suited for receiving textile ilbres from spinning machines andwhich is of low weight and cost, permitting it to be used for shippingpackages, where desired. Many features of the invention are applicablealso to driven textile spools and to cops, tubes,

y pear in the following description in mind, the

invention consists in the combinations and arrangements of parts anddetails of construction which will now ilrst be fully described inconnection with the accompanying drawing and then pointed out moreparticularly in the appended claims.

In the drawing: Fig. 1 is an exploded view in central longitudinalsection showing the parts going to make up a angeless pim or windingtube embodying the invention in a preferred form; A

Fig. 2 is a side view, partly in central longitudinal section, showingthe completed structure made up of the partsvin Fig. 1;

Fig. 3 is an end view showing the drive end of the pirn Fig. 4 is an endview showing the opposite or winding end of the pirn;

Figs. 5 and 6 are transverse sections taken respectively on the lines 5and 6 of Fig. 1; and

Fig. is a fragmentary side view, partly in central longitudinal section,showing a modified type of construction for the winding end.

'I'he barrel of the pirn includes an outer tubular barrel l, preferablyof pasteboard or similarly deformable material and which may beimpregnated witha phenolic resin or the like so as to harden it andimprove its surface characteristics. Within outeribarrel l arepositioned outer and inner split metal tubes 2 and 3 respectively, thesplits in which are preferably positioned opposite each other where veryaccurate balance is required. 'I'hese split metal tubes are urgedoutwardly against the inner surface of outer barrel l by transverseannular 'or cup-shaped braces 4 which are driven into tube 3 so as toforce the tubes 2 and l 'outwardly against the company, Inc.,

outer barrel l with sufcient pressure to compel the outer barrel l toconform to the straight cylindrical contour of outerl tube 2.'

' The drive end assembly includes a metallic cap member 5 which may bedrawn from a, single piece of metal and which has a central aperture liforming a spindle bearing. 'I'he cap member 5 includes also acylindrical portion 1 concentric with the aperture 6 and adapted to bedriven into tube 3. A plug Bof wood or any .other desired materialprovides means for engaging the whorl of a spinning machine, beingformed with a central opening 9 to accommodate the spindle and atransverse slot I0 to engage the lugs of the whorl. The central opening9 should be larger in diameter than the spindle and the spindle bearing8 so as not to interfere with proper engagement and centering of thespindle by the spindle bearing E. The plug 8, where made of wood, may beprovided with any of the usual metallic facings or protectors at pointsof wear. Plug 8 is formed with a cylindrical portion Il which fits intocylindrical portion 'l of the cap member and is fastened therein as bymeans of inwardly punched portions I2 of the cap member metal. Belowthis cylindrical portion the plug is provided with an annular shoulderI3 which engages against a corresponding at portion I4 of the cap member5. Cap member 5 is provided with a skirt or rim l5 adapted to fit overthe end of the barrel as shown in Fig. 2 and to be pressed into thebarrel so as to fasten the drive end assembly thereto.

The end assembly comprises an upper spindle bearing I6 which includesVan aperture l1 to engage a spindle and a body portion I8 concentrictherewith and adapted to be driven into tube 3 as shown. It will benoted that this upper bearing construction permits the use of windingtubes or flangeiess pirns upon spindles designed for shorter pirns. Oneconnection in which this feature assumes importance is in the use of aflange'less pirn as a substitute for a single anged pirn. In such usethe bre will be wound upon the barrel in the form of a cylinder withsloping or truste-conical ends and over a length such that the berdoesnot touch the skirt I5 at the drive Aend or reach the end of thebarrel at the winding end. Under such circumstances, it is necessary toprovide a longer structure if the same amount oi material is to becarried as can Vbe woimd upon a flanged pirn.

.A bearing surface for the textile ibre is provided in the form of awasher I9 surrounding Il outer split metal tube 3 and abutting against asmooth surface for the thread to pass over andcanbe'grounddownornolishedasrequlredto eliminate nicks or otherirrcgulariti. Washer Il is provided with an annular recess 2lreceivinganangleshapedringbymeansofwhichthewasherisnelduponthebarreitheendzz of outer split metal tube 2 beingturned over, as shown, for that purpose. The upper end assembly iscompleted by a cap member 22 providedwithanaperture Ntoaccommodateaspindle, but which should be of greater diameter than aperture I1 soasnot to engage the spindle, and with a cylindrical portion 2l adaptedto be driven into inner split metal tube 3. The rim 21 of this capmember is turned over the end 22 oftube2soastocoverthesameandtofastencap member 23 to the pirnr` 'I'his cap member furnishes a place for theinsertion of identifying cards and may be provided with inwardlyextending nibs 2l for holding the same. The cap member may abut againstmember it as shown in Fig.2forthepurposeofholdingthebearing I1 in placeagainst any upward thrust of a spindle during placing of the pirnthereon.

The structure of'the invention may be assembled as follows: the innerand outer split metal tubes 2 and 3 are placed within outer barrel l andthe expanders 4 driven in as shown in Fig. 1. Washer II and ring 2| arenow placed in position and the upper end 22 turned over as described.Insertion of upper bearing member Il completes the assembly so far asshown in Fig. 1. 'Ihe insertion of cap member 23 and the turning over ofits rim 21 completes the assembly of the winding end and the insertionof the drive end assembly and turning inward of skirt I5 completes theassembly of the drive end.

As will be apparent, the construction of the invention involves the useonly of simple and easily constructed parts which may be assembledwithout diiliculty or the employment of precision methods. Nevertheless,dynamic balance and concentricity are insured by the centering of thebearing and driving members with relation to the inside of the innertube, as described. 'I'hese features, together with the great barrelstrength provided, are of particular importance with synthetic fibressuch as rayon, Nylon" or the like, and insure satisfactory operation inwinding at speeds of about 8000 R. P. M. l

In certain casos where washer Il is not required, a modified upper endconstruction as shown in Fig. 7 may be employed. In this case both splitmetal tubes terminate with outer barrel l or slightly short of the endthereof and a cap member 29 is inserted therein. The rim 30 of this capmember is turned into the end of outer barrel I as shown in Fig. 7. Thecap member 29 being otherwise similar to cap member 23 previouslydescribed requires no further description. I

It will be apparent that many features of the present invention andprincipally those relating to the barrel reinforcement are applicable tosingle or double flanged constructions, as well as to the uniiangedconstruction shown.

lic

My copending application Serial No. 411,001, filed September 1d, 1941,forimrl'ovunmtsin TextilespooIsdilcloseaafhmedplrncmsu-nction havingfeaturesincommonwiththeconstructionoftheprentappltcationastotheWhatisclaimedis:

sum-

contube.

5.Inaflangelesstextilespool,andincolnbi nation,atubularbarrelandadriveendtherefor, the said drive end comprising ahollow metalmember fitting within the said tubular barrelandhavingacenteredaperhxreforcngsginga spindleandasecondmemberattachedtnsaid metallic member, said second membercomprising a plug tting within said hollow metallic memberandhavingacentralborelargerthanaspindle baseforaccommodatingaspindiebaseandpmvidedwithatransverseslotfornsleingthedriving lugs of a whorl.

6.InatlangelesstextilespooLandincombination,atubularbarrelandadrlveendtherefor, the said drive end comprising a hollow metallic member fittingwithin the said tubular barrel and having a centered aperture forengaging a. spindle, and a plus fitting within said hollowmember, havinga central aperture larger than a spindle base and provided with meansfor engaging the driving lugs of a whorl.

7. Aangelesstextilespoolaccordingtoclaim 6, in which the said hollowmember comprises alsoarimportionsurroundingsaidtubularburel and fastenedthereto.

RAWSON ATWOOD.

